The "Age exposed filter" for the Views, which works on fields of the "Date" type.

Use case

Let's say a user's account has the field of the "Date" type to collect a user's birthday.
And let's assume we need to create a view to display all users that came of age.

To achieve this we need to do the following steps:
1. Create the view to display users.
2. Add to the view the field that stored birthday.
3. Add to the view the "Age filter".
4. Select the "Is greater than or equal to" operator.
5. Input 18 into the "Value" field.